Analytical solution of magneto-hydrodynamics with acceleration effects of Bjorken expansion in heavy-ion collisions

TL;DR

This paper derives an exact analytical solution for the evolution of magneto-hydrodynamic quark-gluon plasma with acceleration effects in heavy-ion collisions, considering electromagnetic fields and conductivity.

Contribution

It generalizes the Bjorken solution to include acceleration and electromagnetic effects, providing explicit algebraic expressions for fields and energy density corrections.

Findings

Exact algebraic expressions for electric and magnetic fields

Electromagnetic fields influence fluid acceleration

Energy density corrections due to electromagnetic effects

Abstract

In this work, we study the 1+1 longitudinal acceleration expansion of hot and dense quark matter as a conducting relativistic fluid with the electric conductivity $\sigma$. The plasma has embedded in the presence of electric and magnetic fields which are perpendicular together in the transverse plane. In order to be more realistic, we generalize the Bjorken solution, which includes the acceleration effects on the fluid expansion. We apply a perturbation fashion in initial condition to solve the relativistic magneto-hydrodynamics equations. This procedure leads us to achieve the exact algebraic expressions for both electric and magnetic fields. We also find the effects of the electromagnetic fields on the acceleration of the fluid, and the correction of energy density obtained from the magneto-hydrodynamics solutions.